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Queue.Queue vs. collections.deque
... for high-speed inter-thread communication.
In fact the heavy usage of an extra mutex and extra method ._get() etc. method calls in Queue.py is due to backwards compatibility constraints, past over-design and lack of care for providing an efficient solution for this important speed bottleneck issue...
Why Java needs Serializable interface?
...e annoyance when dealing with pure java, like some flaws in collection and string processing in standard library. Happily there's Kryo, but it is dependency and one needs to find it first. This is how built-in serialization should have been done.
– dmitry
Aug 7...
Best way to create custom config options for my Rails app?
...th_indifferent_access" allows you to access the values in the hash using a string key or with an equivalent symbol key.
eg.
APP_CONFIG['audiocast_uri_format'] => 'http://blablalba/blabbitybla/yadda'
APP_CONFIG[:audiocast_uri_format] => 'http://blablalba/blabbitybla/yadda'
Purely a convenie...
(Mac) -bash: __git_ps1: command not found
...rompt will change to "os ". To change "os" to something else, modify "os" string in export PS1 line.
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How can we match a^n b^n with Java regex?
...'s start with a simpler problem: we want to match a+ at the beginning of a string, but only if it's followed immediately by b+. We can use ^ to anchor our match, and since we only want to match the a+ without the b+, we can use lookahead assertion (?=…).
Here is our pattern with a simple test harn...
Should I always return IEnumerable instead of IList?
...ormation but once again, why would you throw away information? If you know extra information about something, pass it on.
– Mel
Oct 20 '11 at 12:13
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Get the first item from an iterable that matches a condition
...for x in the_iterable if x > 3), default_value)
Note that you need an extra pair of parentheses around the generator expression in this case − they are needed whenever the generator expression isn't the only argument.
I see most answers resolutely ignore the next built-in and so I assume tha...
SQL Developer is returning only the date, not the time. How do I fix this?
...ithout then also following with month then day. It also sorts cleanly as a string, which is a handy side effect.
– trevorsky
Apr 1 at 21:05
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How to document Python code with doxygen [closed]
... to document your Python code. You can either use the Python documentation string syntax:
"""@package docstring
Documentation for this module.
More details.
"""
def func():
"""Documentation for a function.
More details.
"""
pass
In which case the comments will be extracted by d...
Export specific rows from a PostgreSQL table as INSERT SQL script
...y) and add it as the 'driver' of the postgresql conneciton. The connection string (or URL as in the interface) should look like that: jdbc:postgresql://127.0.0.1:5432/db_name
– mrmuggles
Jul 13 '16 at 6:30
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